1. Create Feed using CSV as source
2. Map columns to values, including langcode (see screenshot)
3. Run import.
In theory there should be one node with 4 translations but instead I get one node with the last translation processed (using my example, the Spanish version). If I run the step by step debugging, I see that the node is created and then updated 3 times and every time only has one translation: the one from that step.
I suppose this has to do with EntityProcessorBase.php but I can't find the actual issue. This might be related with the solutions from 🐛 Setting a target for "langcode" field will sometimes throw "this field cannot hold more than 1 values" Needs work since I have that patch applied.
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